<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>2_使用js创建虚拟DOM</title>
</head>
<body>
  <!-- 准备好一个“容器” -->
  <div id="test"></div>

  <!-- 引入react核心库 -->
  <script type="text/javascript" src="../js/react.development.js"></script>
  <!-- 引入react-dom，用于支持react操作DOM -->
  <script type="text/javascript" src="../js/react-dom.development.js"></script>

  <script type="text/javascript">
    // 1. 创建虚拟DOM
    // const VDOM = React.createElement('h1', {id: 'title'}, 'Hello,React')
    const VDOM = React.createElement('h1', {id: 'title'}, React.createElement('span', null, 'Hello,React'))
    // 2. 渲染虚拟DOM到页面
    ReactDOM.render(VDOM, document.getElementById('test'))
  </script>
</body>
</html>